List of state leaders in 1091

This is a list of heads of state, government leaders, and other rulers in the year 1091.

Africa

• Almoravid dynasty – Yusuf ibn Tashfin (1061–1106)
• Ethiopian Empire – Kedus Harbe (1079–1119)
• Fatimid Caliphate – al-Mustansir Billah (1036–1094)
• Hammadid dynasty – al-Mansur ibn an-Nasir (1088–1104)
• Ifriqiya (Zirid dynasty) – Tamim ibn al-Mu'izz (1062–1108)
• Kingdom of Makuria – Basileios (1089–1130)
• Wagadou (Ghana Empire) –
  1. Kambine Diaresso (1087–1090s)
  2. Suleiman (1090s–1100s)

Asia

• Armenia Minor – Ruben I, King of Armenia (1080–1095)
• Baghdad – Al-Muqtadi, Abbasid Caliph (1075–1094)
• Byzantine Empire – Alexios I Komnenos (1081–1118)
• China (Northern Song dynasty) – Emperor Zhezong (1085–1100)
• Emirate of Damascus – Tutush I (1079–1095)
• Kingdom of Georgia – David IV (1089–1125)
• Ghaznavid Empire – Zahir ud-Dalah Ibrahim (1059–1099)
• Great Seljuq Empire – Malik-Shah I (1072–1092)
• Japan (Heian period) –
  • Monarch – Emperor Horikawa (1087–1107)
  • Regent (Sesshō; Kampaku) – Fujiwara no Morozane, Sesshō (1087–1091); Kampaku (1091–1094)
  • Cloistered ruler – Emperor Shirakawa, Jōkō of Japan (1087–1129)
• Sultanate of Kerman – Turan Shah I (1084–1096)
• Korea (Goryeo Kingdom) – Seonjong (1083–1094)
• Liao dynasty (Khitan Empire) – Emperor Daozong (1055–1101)
• Thailand – Praya Thamikaraj, King of Thailand (1056–1107)
• Vietnam – Lý Nhân Tông, King of Vietnam (1072–1127)
• Western Xia – Emperor Chongzong (1086–1139)

Europe

• Taifa of Alpuente – Ahmed Adad ed Dawlah (?-1092)
• County of Angoulême – William III (1089–1118)
• County of Anjou – Fulk IV (1067–1109)
• Duchy of Apulia – Roger Borsa (1085–1111)
• Duchy of Aquitaine – William IX (1086–1127)
• Kingdom of Aragon – Sancho I (1063–1094)
• Margraviate of Austria – Leopold II (1075–1095)
• County of Auvergne – Robert II (1064–1096)
• Margraviate of Baden – Herman II (1073–1130)
• County of Barcelona – Ramon Berenguer III (1082–1131)
• Barrois – Sophie, Countess of Bar (1033–1092)
• Duchy of Bavaria – Welf I (1070–1101)
• County of Blois – Stephen II (1089–1102)
• Duchy of Bohemia – Vratislav II (1061–1085)
• County of Boulogne – Eustace II (1049–1093)
• Duchy of Brittany – Alan IV (1084–1112)
• Duchy of Burgundy – Odo I (1079–1103)
• Byzantine Empire – Alexios I Komnenos (Αλέξιος Α' Κομνηνός) (1081–1118)
• Duchy of Carinthia – Henry II (1090–1122)
• Kingdom of Castile – Alfonso VI (1071–1109)
• County of Champagne – Odo IV (1089–1092)
• Kingdom of Croatia – Stjepan II of Croatia (1089–1091)
• Deheubarth – Rhys ap Tewdwr, Prince of Deheubarth (1078–1093)
• Kingdom of Denmark – Olaf I (1086–1095)
• Kingdom of England – William II (1087–1100)
• County of Flanders – Robert I (1071–1093)
• Kingdom of France – Philip I (1060–1108)
• Kingdom of Gwent – Iestyn ap Gwrgant, Prince of Gwent (1081–1091)
• Kingdom of Gwynedd – Gruffudd ap Cynan (1081–1137)
• County of Hainaut – Baldwin II (1071–1098)
• Holy Roman Empire – Henry IV (1056–1105)
• Kingdom of Hungary – Ladislaus I (1077–1095)
• Ireland – Domnall Ua Lochlainn, High King of Ireland (1083–1121)
• Kingdom of the Isles – Godred Crovan (1079–1095)
• Kievan Rus' – Vsevolod I (1078–1093)
• Kingdom of León – Alfonso VI (1065–1109)
• Duchy of Lorraine – Theodoric II (1070–1115)
• Duchy of Lower Lorraine – Godfrey of Bouillon (1087–1100)
• County of Maine – Robert (1073–1096)
• March of Montferrat – William II (1084-c. 1101), with Rainier (1084-c. 1136)
• Kingdom of Navarre – Sancho V (1063–1094)
• Principality of Nitra – Lampert of Hungary (1077–1095)
• Duchy of Normandy – Robert Curthose (1087–1106)
• Kingdom of Norway – Olav Kyrre (1066–1093)
• County of Poitiers – William IX (1086–1127)
• Duchy of Poland – Władysław I Herman (1079–1102)
• Duchy of Pomerania – Zemuzil (1046–1106)
• Kingdom of Powys – Iorwerth ap Bleddyn, prince of Powys (1088–1103), with Cadwgan ap Bleddyn (1088–1111)
• County of Provence – Bertrand II (1063–1093)
• County of Savoy – Umberto II (1080–1103)
• Duchy of Saxony – Magnus (1072–1106)
• Kingdom of Scotland – Malcolm III (1058–1093)
• Serbia (Duklja) – Constantine Bodin (1080–1101)
• County of Sicily – Roger I (1071–1101)
• Duchy of Swabia – Frederick I (1079–1105)
• Kingdom of Sweden – Inge the Elder (1087–1105)
• Duchy of Styria – Ottokar VI (1084–1122)
• County of Toulouse – William IV (c. 1061- c. 1093)
• Bishopric of Utrecht – Conrad (1076–1099)
• Taifa of Valencia – El Cid
• Republic of Venice – Vitale Faliero, Doge of Venice (1084–1096)
• County of West Friesland –
  1. Dirk V (1061–1091)
  2. Floris II (1091–1121)
• County of Württemberg – Conrad I (1089–1122)

Middle East and North Africa

• Byzantine Empire – Alexios I Komnenos (Αλέξιος Α' Κομνηνός) (1081–1118)